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Mathematics, 29.11.2019 04:31 xscape0mari
Aschool bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel in the bus. how many ways can the students be seated if all of the second-grade students occupy the first row? a. 25p20 b. 5p5 × 20p15 c. 5c5 × 25c14 d. 5p5 × 15p15 e. 5p5 × 25c15
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Aschool bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students fr...
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